Millbury, OH 43441 Frost Dates
Millbury, OH: when does the frost end?
Around 04/20 is the usual last spring frost, about 235 days away. Fall's first freeze usually shows up around 10/27, roughly 188 days after the last spring frost.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Millbury, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until Millbury's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Millbury's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Millbury against the rest of the dataset
About 188 days separate Millbury's last and first frost, putting it 22,102 of 40,283 ZIP codes nationally. Within OH, it ranks 397 of 1,383.
Learn more
Before leaning on 43441's figures: the frost range explains how to read the range around Millbury's dates instead of trusting one, while local microclimates explains what one yard in Millbury can differ from the 43441 normal.